Fast and accurate technique to decompose jitter for very long pattern length waveform

2014 ◽  
Author(s):  
Joseph Kho ◽  
Tan Yih Ling
Keyword(s):  
Pattern Length

scholarly journals Synthesis of gold, platinum, and gold-platinum alloy nanoparticle colloids with high-power megahertz-repetition-rate lasers: the importance of the beam guidance method

2021 ◽  
Author(s):  
Friedrich Waag ◽  
René Streubel ◽  
Bilal Gökce ◽  
Stephan Barcikowski
Keyword(s):  
Laser Ablation ◽  
Noble Metals ◽  
Saline Water ◽  
Synthesis Method ◽  
Laser Ablation In Liquid ◽  
Platinum Alloy ◽  
Lower Productivity ◽  
Pattern Length ◽  
Scan Pattern ◽  
Gold Platinum

AbstractNanoparticles of noble metals and their alloys are of particular interest for biomedicine and catalysis applications. The method of laser ablation of bulk metals in liquids gives facile access to such particles as  high-purity colloids and is already used in industrial research. However, the method still lacks sufficient productivity for industrial implementation into series production. The use of innovative laser technology may help to further disseminate this colloid synthesis method in the near future. Ultrashort-pulsed lasers with high powers and megahertz-repetition-rates became available recently, but place high demands on the accurate optical laser pulse delivery on the target. Full lateral pulse separation is necessary to avoid a reduction of nanoparticle productivity due to pulse shielding. In this study, we compare flexible but rather slow galvanometer scanning with much faster but more expensive polygon-wheel scanning in their performance in the production of colloidal nanoparticles by laser ablation in liquid. Both beam guidance technologies are applied in the laser ablation of gold, platinum, and a gold-rich platinum alloy in micromolar saline water. We found that the dimensions of the scan pattern are crucial. A threshold pattern length exists, at which one scan technology becomes more productive than the other one. In addition, a much lower productivity was found for the ablation of gold compared to that of platinum. Alloying gold with only 10 at.% of platinum improved the productivity nearly to the level of platinum, reaching 8.3 g/h.

scholarly journals Structural controls on earthquake rupture revealed by the 2020 Mw 6.0 Jiashi earthquake (Kepingtag belt, SW Tian Shan, China)

2021 ◽  
Author(s):  
Siyu Wang ◽  
Edwin Nissen ◽  
Timothy Craig ◽  
Eric Bergman ◽  
Léa Pousse-Beltran
Keyword(s):  
Cross Sections ◽  
Surface Deformation ◽  
Coseismic Deformation ◽  
Southern Chinese ◽  
Pattern Length ◽  
Waveform Modelling ◽  
Thrust Sheets ◽  
Dip Angle ◽  
Seismic Reflection Profiles ◽  
Tian Shan

The Kepingtag (Kalpin) fold-and-thrust belt of the southern Chinese Tian Shan is characterized by active shortening and intense seismic activity. Geological cross-sections and seismic reflection profiles suggest thin-skinned, northward-dipping thrust sheets detached in an Upper Cambrian décollement. The January 19 2020 Mw 6.0 Jiashi earthquake provides an opportunity to investigate how coseismic deformation is accommodated in this structural setting. Coseismic surface deformation resolved with Sentinel-1 Interferometric Synthetic Aperture Radar (InSAR) is centered on the back limb of the frontal Kepingtag anticline. Elastic dislocation modelling suggests that the causative fault is located at ~7 km depth and dips ~7° northward, consistent with the inferred position of the décollement. The narrow slip pattern (length ~37 km but width only ~9 km) implies that there is a strong structural or lithological control on the rupture extent, with up-dip slip propagation possibly halted by an abrupt change in dip angle where the Kepingtag thrust is inferred to branch off the décollement. A depth discrepancy between mainshock slip constrained by InSAR and teleseismic waveform modelling (~7 km) and well-relocated aftershocks (~10-20 km) may imply that sediments above the décollement are velocity strengthening. We also relocate 148 regional events from 1977 to 2020 to characterize the broader distribution of seismicity across the Kepingtag belt. The calibrated hypocenters combined with previous teleseismic waveform models show that thrust and reverse faulting earthquakes cluster at relatively shallow depths of ~7-15 km but include abundant out-of-sequence events both north and south of the frontal Kepingtag fault.

Advances in understanding plant root hairs in relation to nutrient acquisition and crop root function

2021 ◽  
pp. 127-162
Author(s):  
Timothy S. George ◽  
◽  
Lawrie K. Brown ◽  
A. Glyn Bengough ◽  
◽  
...  
Keyword(s):  
Plant Root ◽  
Root Hairs ◽  
Microbial Interactions ◽  
Flowering Plant ◽  
Agricultural Sustainability ◽  
Root Tip ◽  
Pattern Length ◽  
Crop Root ◽  
Flowering Plant Species ◽  
And Function

Root hairs are found on most terrestrial flowering plant species. They form from epidermal cells at a predetermined distance behind the growing root tip in three main patterns. Their presence, pattern, length, density and function are genetically controlled and numerous genes are expressed solely in root hairs. Their growth and proliferation are attenuated by the environment and root hairs growing in soil are generally shorter and less dense than those in laboratory studies. Root hairs have a number of functions including anchorage, root soil contact and bracing to enable roots to penetrate hard soils. However, their primary function is acquisition of nutrients and water, in particular phosphate. They are the site of transporters, exudation of active compounds and infection point of symbiotic microbial interactions. They have a profound effect on rhizosphere characteristics and are a potentially useful target for breeding crops for future agricultural sustainability.

"Pattern Length" Coding for Dithered Pictures

1982 ◽  
Vol 30 (1) ◽  
pp. 212-218 ◽  
Author(s):  
M. Takizawa ◽  
T. Fukinuki
Keyword(s):  
Pattern Length

Bit Pattern Length Dependence of Intrachannel Nonlinearities in Pseudolinear Transmission

2004 ◽  
Vol 16 (6) ◽  
pp. 1591-1593 ◽  
Author(s):  
L.K. Wickham ◽  
R.-J. Essiambre ◽  
A.H. Gnauck ◽  
P.J. Winzer ◽  
A.R. Chraplyvy
Keyword(s):  
Length Dependence ◽  
Pattern Length

scholarly journals Comprehensive comparison of Pacific Biosciences and Oxford Nanopore Technologies and their applications to transcriptome analysis

F1000Research ◽  
2017 ◽  
Vol 6 ◽  
pp. 100 ◽  
Author(s):  
Jason L Weirather ◽  
Mariateresa de Cesare ◽  
Yunhao Wang ◽  
Paolo Piazza ◽  
Vittorio Sebastiano ◽  
...  
Keyword(s):  
Data Quality ◽  
Transcriptome Analysis ◽  
Embryonic Stem ◽  
Superior Performance ◽  
Pacific Biosciences ◽  
Long Reads ◽  
Oxford Nanopore ◽  
Pattern Length ◽  
Transcriptome Analyses ◽  
Oxford Nanopore Technologies

Background: Given the demonstrated utility of Third Generation Sequencing [Pacific Biosciences (PacBio) and Oxford Nanopore Technologies (ONT)] long reads in many studies, a comprehensive analysis and comparison of their data quality and applications is in high demand. Methods: Based on the transcriptome sequencing data from human embryonic stem cells, we analyzed multiple data features of PacBio and ONT, including error pattern, length, mappability and technical improvements over previous platforms. We also evaluated their application to transcriptome analyses, such as isoform identification and quantification and characterization of transcriptome complexity, by comparing the performance of PacBio, ONT and their corresponding Hybrid-Seq strategies (PacBio+Illumina and ONT+Illumina). Results: PacBio shows overall better data quality, while ONT provides a higher yield. As with data quality, PacBio performs marginally better than ONT in most aspects for both long reads only and Hybrid-Seq strategies in transcriptome analysis. In addition, Hybrid-Seq shows superior performance over long reads only in most transcriptome analyses. Conclusions: Both PacBio and ONT sequencing are suitable for full-length single-molecule transcriptome analysis. As this first use of ONT reads in a Hybrid-Seq analysis has shown, both PacBio and ONT can benefit from a combined Illumina strategy. The tools and analytical methods developed here provide a resource for future applications and evaluations of these rapidly-changing technologies.

scholarly journals Fast and Scalable Pattern Matching for Memory Architecture

2016 ◽  
pp. 84-89
Author(s):  
J. Santhi ◽  
L. Srinivas
Keyword(s):  
Pattern Matching ◽  
Large Fraction ◽  
Bloom Filters ◽  
Memory Architecture ◽  
Embedded Memory ◽  
Content Filtering ◽  
Pattern Length ◽  
Memory Accesses ◽  
On Chip ◽  
Specialized Hardware

Multi-pattern matching is known to require intensive memory accesses and is often a performance bottleneck. Hence specialized hardware-accelerated algorithms are being developed for line-speed packet processing. While several pattern matching algorithms have already been developed for such applications, we find that most of them suffer from scalability issues. We present a hardware-implementable pattern matching algorithm for content filtering applications, which is scalable in terms of speed, the number of patterns and the pattern length. We modify the classic Aho-Corasick algorithm to consider multiple characters at a time for higher throughput. Furthermore, we suppress a large fraction of memory accesses by using Bloom filters implemented with a small amount of on-chip memory. The resulting algorithm can support matching of several thousands of patterns at more than 10 Gbps with the help of a less than 50 KBytes of embedded memory and a few megabytes of external SRAM.

scholarly journals Association of Morphological Characteristics of Palatal Rugae Pattern with Dental Malocclusion in Himachal Population

2021 ◽  
Vol 8 (5) ◽  
pp. 13-18
Author(s):  
Indu Dhiman ◽  
Shikha Thakur ◽  
Depinder Pal Singh
Keyword(s):  
Morphological Characteristics ◽  
Class I ◽  
Class Iii ◽  
Stable Point ◽  
Palatal Rugae ◽  
Pattern Length ◽  
The Right ◽  
Dental Cast ◽  
Orientation Pattern ◽  
Dental Malocclusion

Introduction: Palatal rugae used for the evaluation of dental movements and as a landmark in the superimposition of dental cast for orthodontic purpose as it is a stable point. So, the aims and objectives of our study is to investigate the association of morphological characteristics of palatal rugae with dental malocclusion in Himachali population. Materials and methods: 90 subjects divided into three groups (n=30 each) on the basis of Angle’s classification. Palatal rugae were marked on dental casts and evaluated for length, pattern and orientation. Obtained measurements were then statistically analysed. Conclusion: Primary palatal rugae’s length was found more in Class II followed by Class III and Class I malocclusion. Among the pattern of the primary palatal rugae, curved pattern were more evident on both right and left sides of all malocclusion groups. Horizontal directed orientation is more predominant on the right side and posteriorly directed on the left side of the first primary palatine rugae. Keywords: Rugae, Malocclusion, orientation pattern, length, morphology.

scholarly journals ATRIBUTOS FÍSICOS E CONSERVACIONISTAS DA BACIA HIDROGRÁFICA DO RIO SANTA HELENA

Nativa ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 91
Author(s):  
Wesley Vicente Claudino ◽  
Vinícius Alves Andrade Oliveira ◽  
Edgley Pereira Silva ◽  
Sylvia Karla Ferreira Santos ◽  
Ademilson Sampaio Oliveira
Keyword(s):  
Shape Factor ◽  
Supervised Classification ◽  
Drainage Density ◽  
Maximum Likelihood Algorithm ◽  
Drainage Pattern ◽  
Type Analysis ◽  
Circularity Index ◽  
Vulnerability Model ◽  
Pattern Length ◽  
Medium Risk

O objetivo do trabalho foi verificar as características físicas e conservacionistas da bacia hidrográfica do Rio Santa Helena com o uso do sensoriamento remoto e geoprocessamento, e criar um modelo empírico de vulnerabilidade a erosão para a região. Foram realizadas as análises da densidade de drenagens, área total, perímetro total, coeficiente de compacidade, fator de forma, índice de circularidade, padrão de drenagem, comprimento do curso d´água principal, comprimento total dos cursos d´água e ordem dos cursos d´água. Para a criação do modelo de vulnerabilidade à erosão foi realizada a classificação supervisionada através do algoritmo de máxima verossimilhança, o cálculo do potencial erosivo das chuvas para a região, além da análise da declividade e do tipo de solo. Os resultados obtidos foram: área de drenagem 1461,68 km²; perímetro 329,16 km; comprimento axial 68,81 km; coeficiente de compacidade 2,41; fator de forma 0,31 e o índice de circularidade 0,17. A hidrografia apresenta padrão dendrítico, de 5ª ordem e com densidade de drenagem baixa (0,96 km/km²). Esses dados indicam um formato irregular e alongado da bacia. Quanto ao potencial erosivo, a bacia apresenta de baixo a médio risco, principalmente devido à declividade e à cobertura do solo.Palavras-chave: manejo de bacias hidrográficas; geoprocessamento; modelagem erosiva. PHYSICAL AND CONSERVATIONAL ATRIBUTES OF THE SANTA HELENA RIVER WATER BASIN ABSTRACT: The objective of this work was to verify the physical and conservation characteristics of the Santa Helena River basin using remote sensing and geoprocessing, and to create an empirical model of erosion vulnerability for the region. Drainage density, total area, total perimeter, compactness coefficient, shape factor, circularity index, drainage pattern, length of main watercourse, total length of watercourses and order of watercourses were analyzed. For the creation of the erosion vulnerability model, the supervised classification was performed through the maximum likelihood algorithm, the rainfall erosive potential calculation for the region, as well as the slope and soil type analysis. The results obtained were: drainage area 1461.68 km²; perimeter 329.16 km; axial length 68.81 km; compactness coefficient 2.41; form factor 0.31 and circularity index 0.17. The hydrography has a dendritic pattern of 5th order and low drainage density (0.96 km / km²). These data indicate an irregular and elongated shape of the basin. As for the erosive potential, the basin presents low to medium risk, mainly due to the slope and the ground cover.Keywords: management of watersheds; geoprocessing; erosive modeling.

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